the vice president robert aims said it is about dumping dirty diesel to help the environment. >> when you burn it, there is a 30% reduction in particulate matter and 20% reduction in carbon monoxide and 10% reduction in total hydrocarbon. >> reporter: the price is the same as regular diesel. $4.23 a gallon. but after the splashy news conference and after the biofuel folks left, it seems the vallejo franchise didn't get the memo. they dropped their diesel price, under cutting the new bio deal by 16 cents. the new pumps sat alone hour after hour until finally lucy made history as a first person to purchase. >> do you know you are making history today? >> no. >> reporter: lucy was shy but number two jim purcell wasn't. he loaded his ram truck up with $100 of the stuff. he doesn't care if it comes from algae. >> i've run corn oil in this thing. that's the reason i bought a diesel. >> reporter: it is approved for use in all diesel engines without restrictions. >> it kind of smells like salad, sort of. well if you want some of this, hussle on down because the company said this is only a 0-